Mr. Swainson on several new groups in Ornithology/, 169 



lengthened, and graduated. Feet rather long ; anterior scales 

 of the tarsi five, unequal ; lateral scales entire. 

 Types. Le Capolier, Le Vaill. Ois. d'Afr. pi. 130, f. 1. ^r- 

 La queue gazee. Id. f. 2. 



The Rousse tSte (pi. 124) and the Pinc-pinc (pi. 131), of the 

 same author, appear to be aberrant species of this group, which is 

 numerous ill Africa, and may probably extend to India. It meets 

 the Australian group of Malurus ; from which, however, it is 

 easily known by the gradual curve of the culmen — by the upper 

 mandible not being notched — by the anterior scales being divided 

 instead of entire ; and by the nostrils being destitute of feathers. 

 From Dasyornis it is separated by the great difference in the 

 strength of the bill ; strong in one and feeble in the other ; as 

 well as by the construction of the wings. 



Sub 'family Silmana. 



SYLVICOLA. 



Rostrum gracile^ acutum, leviter emarginatum. 



Alee longiusculcB^ attenuaice ; remige prima secunda vix breviore^ 



secunda et tertia longlssimis, 

 Cauda jnediocris^ cequalis. 

 Pedes mediocres ; tarsorum squamis anterioribus 4 inequalibusy 



lateralibus integris. 



Bill slender, acute, slightly notched. Wings rather long, pointed, 

 the first quill scarcely shorter than the second and third, which 

 are the longest. Tail moderate, even. Legs slender, anterior 

 scales four, unequal ; lateral scale entire. 



Type. Sylvia pusilla, Wilson, 4. pi. 28. f. 3. 



This genus, which will comprise exclusively the greatest part 

 of the Sylvice of North America, is strictly typical. The forma- 

 tion of the wing affords an unerring mark of distinction. The 

 nearest approach I have yet seen towards this extensive group it 



